Senior FullStack Developer (TypeScript/JavaScript, .NET C#, SQL)

JOB TITLE: Senior FullStack Developer (TypeScript/JavaScript, .NET C#, SQL)

SALARY: £70,929 - £86,691per annum

LOCATION: Manchester
HOURS: Full-time – 35 hours per week 

WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our offices stated above.  

ABOUT THIS OPPORTUNITY

We’re not just a bank. We’re a technology-led organisation with a bold ambition: to shape finance as a force for good. As we continue to invest in our people, platforms, and products, we’re looking for passionate Senior Fullstack Developers with experience in both TypeScript/JavaScript and .NET C# to help us create secure, scalable, and customer-first solutions.

If you’re someone who thrives in collaborative environments, enjoys solving meaningful problems, and wants to make a real impact - this could be the perfect next step in your career.

WHAT YOU’LL BE DOING

As a senior software engineer, you’ll play a key role in designing and building modern applications that touch millions of lives. You’ll:

• Design, develop, test, and deploy frontend and backend services.

• Build and deploy containerized applications with Docker and Kubernetes.

• Apply Domain-Driven Design (DDD) and Test-Driven Development (TDD) principles.

• Collaborate closely with Product Owners, Architects, and Quality Engineers.

• Integrate with internal systems and third-party APIs to create seamless user experiences.

• Contribute to architectural decisions and help shape our engineering strategy.

• Mentor junior engineers and foster a culture of learning and inclusion.

WHAT YOU’LL NEED

We’re looking for senior engineers who are adaptable, curious, and passionate about building great software!

To help us understand how you might contribute to our team, please highlight any relevant experience with the following skills and technologies in your application:

Backend Development

• Proven hands-on experience with Node.js (TypeScript/JavaScript), including designing and implementing RESTful APIs that support scalable, secure, and high-performance architectures. Any experience with NestJS, TypeORM and Redis (caching) is also highly desirable.

• Familiarity with Microsoft C# with a strong understanding of the .NET framework and object-oriented programming.

• Proficient in database design and SQL (Microsoft SQL Server/PostgreSQL).

Frontend Development

• Strong proficiency in JavaScript/TypeScript for building modern, responsive user interfaces.

• Familiarity with front end frameworks such as React (preferable), Vue.js or Angular. Experience with libraries such as Next.js, Redux, React Query and React Hook Forms is desirable.

• Exposure to UI component development tools such as Storybook is preferable

DevOps & Cloud

• Experience with CI/CD tools such as GitHub Actions, Jenkins, or Harness.

• Familiarity with Docker for containerization and Kubernetes for orchestration.

• Exposure to cloud platforms — Google Cloud Platform (GCP) preferred, but AWS or Azure experience is also welcome.

Quality Testing & Automation

• Experience with automated testing tools like Playwright and Jest.

• Commitment to writing reliable, maintainable, and well-tested code.

If you're selected to move forward in our assessment process, you may be invited to complete a technical interview with Karat - our trusted interviewing partner. As part of this stage, we’ll share your information with Karat, in line with their privacy policy. 

We’re committed to making our recruitment process inclusive and accessible. If you need any adjustments, just let us know - we’re here to support you.

ABOUT WORKING FOR US  

We’re proud to be a leader in diversity, equity, and inclusion. From our menopause health package to our Working with Cancer initiative, we’re creating a workplace where everyone can thrive.

We’re also a Disability Confident Leader, and we guarantee interviews for a fair and proportionate number of applicants with disabilities, long-term health conditions, or neurodivergence who meet the minimum criteria.

Our benefits include:

• Up to 15% pension contribution

• Annual bonus (based on Group performance)

• Share schemes, including free shares

• 30 days’ holiday plus bank holidays

• Flexible benefits tailored to your lifestyle

• Generous parental leave and wellbeing support

Ready for a career where you can have a positive impact as you learn, grow and thrive?  

Apply today and find out more!